Fatal error: Uncaught Error: Interface 'Masterminds\HTML5\Serializer\RulesInterface' not found in /var/www/typo3/vendor/typo3/html-sanitizer/src/Serializer/RulesInterface.php:22 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/typo3/html-sanitizer/src/Serializer/RulesInterface.php on line 22